"It's time to go to the amusement park! What's at the center of this fun-filled place? Motion! Feel like you were floating for a second on the roller coaster? You can thank g-forces! Did you send the bottles flying after a game-winning throw? That's Newton's first law of motion. Find out more about the science involved in making things go"--

Tammy Enz holds a bachelor's degree in civil engineering and a master's degree in journalism and mass communications. She teaches at the University of Wisconsin-Platteville and has written dozens of books on science and engineering topics for young people.